Improvement in pumps



GEORG E W. PRESTON.

Pumps.

Patented May 7,1872.

Witnesses:

Attorneys.

AM PHIIIO-LITHOGHAPHIL ca WVE S FROEISS.)

UNITED STATES PATENT OFFICE.

GEORGE W. PRESTON, OF CLYDE, OHIO.

IMPROVEMENT IN PUMPS.

Specification forming part of Letters Patent No. 126,574, dated May 7, 1872.

To all whom it may concern:

Be it known that I, GEORGE W. PEEsToN, of Clyde, in the county of Sandusky and in the State of Ohio, have invented certain new and useful Improvements in Pumps; and do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawing and to the letters of reference marked thereon, making a part of this specification.

The nature of my invention consists in the construction and arrangement of a force-pump, as will be hereinafter more fully set forth.

In order to enable others skilled in the art to which my invention appertains to make and use the same, I will now proceed to describe its construction and operation, referring to the annexed drawing, in which- Figure l is a perspective view, and Fig. 2 a longitudinal vertical section of my force-pump. Fig. 3 is a view of a part of the pump-stock.

A represents the pump-stock, to which the cylinder B is attached by a bent rod, a, or clip, or other suitable means. In the cylinder B are two valves, 12 1), opening from their upper ends inward into the pump-stock A, thereby giving the water an upward tendency from each valve, and thus saving fully one-fourth the power it takes to force thewater through an angle of forty-five degrees, as all other pumps do. These valves open just far enough to allow the water to escape with ease from the cylinder. Shoulders e e are left upon each side of the pumpstock to prevent the valves from opening too far, a groove being left in the center so that the pressure of water in the pump-stock or tube will close the valves as the alternate pressure ceases in the cylinder, caused by the motion of the handle or lever. The cylinder B is provided with perforated movable heads 0 C, so constructed as to allow the water free access into the cylinder, and have valves d d upon the inside, fitting so tight as to allow no water to escape except through the pump-stock. The heads 0 U are fitted tight in the cylinder, and

are secured there by means of flanged bolts or screws f f attached to the cylinder. To remove the heads it only requires a half turn of these bolts, leaving the flanges outward; the heads can then be removed with ease, thus saving the necessity of injuring the cylinder in removing the head. D represents the piston or plunger, connected by a rod, E, with the handle G. This rod passes through a stnffing-box, h, provided with a metal cap, z, placed in the top head (3 of the cylinder. This stuffing-box prevents the escape of water with the motion of the piston-rod. The handle G is provided with two angular metal bars, H H, which are pivoted to the pump-stock and the piston-rod E, attached between its outer ends. By thus having the handle on the opposite side of the pumpstock from the piston-rod at least one-third more power is given to the action.

By the combination of these different parts a simple and yet powerful and efficient pump is formed, which a child can work with ease.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. The perforated movable heads 0 0 provided with interior valves d d, and attached to the ends of the cylinder B by means of flanged bolts or screws ff, substantially as and for the purposes herein set forth.

2. The within-described force-pump, consistin g of the pump-stock A with shoulders e 6, cylinder B with valves b b, perforated heads 0 O with flanged bolts ff, valves 01 d, stuffing-box h, plunger D, rod E, bars H H, and handle G, all constructed and arranged substantially as herein shown and described, and for the purposes set forth.

In testimony that I claim the foregoing I have hereunto set my hand this 3d day of February, 1872.

GEO. W. PRESTON. Witnesses:

J. B. BUSH, BASIL MEEK. 

